CN108376574A - A kind of wide cut conducting PET film and its manufacturing method - Google Patents
A kind of wide cut conducting PET film and its manufacturing method Download PDFInfo
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- CN108376574A CN108376574A CN201810171941.XA CN201810171941A CN108376574A CN 108376574 A CN108376574 A CN 108376574A CN 201810171941 A CN201810171941 A CN 201810171941A CN 108376574 A CN108376574 A CN 108376574A
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- Prior art keywords
- pet film
- wide cut
- nano
- silver thread
- conducting pet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Non-Insulated Conductors (AREA)
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Abstract
The invention discloses a kind of wide cut conducting PET film and its manufacturing methods, it is using PET film as flexible substrates, it is formed with nano-silver thread conductive film layer on the surface of PET film, specifically in making the technical process of PET film using biaxial tension legal system, it is made in vertical the step of drawing the conductive ink that increase roller coating is modulated with nano-silver thread between horizontal drawing.The present invention can get width in the wide cut conducting PET film of 3~6m, and method is simple, production efficiency is high, relative cost is lower, be suitable for industrial applications.
Description
Technical field
The present invention relates to a kind of conducting PET films, belong to new material technology field.
Background technology
Core component one of of the conducting PET film as electronic device, there is important application in touch screen field.At present
Most widely used conducting PET film but since indium resource is increasingly deficient, is led for conducting medium with ITO (Yangization Yin Tin)
ITO costs are caused increasingly to increase.And ITO brittleness is higher, bends easy fracture, sheet resistance is bigger than normal, it is difficult to meet large scale Flexible Displays and answer
With.In recent years, the important substitute of the conducting PET film using nano-silver thread as conducting medium as ITO materials has obtained greatly
Quantity research.
The manufacture of the existing conducting PET film using nano-silver thread as conducting medium uses roller typically in PET film
The mode for applying conductive ink is completed.But since existing coating technique is limited, the universal width of such conducting PET film of existing market
It is wide to accomplish 1.5~1.8 meters, and high expensive, large-sized market demand cannot be completed.
Invention content
To avoid above-mentioned existing deficiencies in the technology, the present invention provides a kind of wide cut conducting PET film and
Its manufacturing method, it is intended to its breadth be made to reach 3~6m.
The present invention is to realize goal of the invention, is adopted the following technical scheme that：
The wide cut conducting PET film of the present invention, is passed through on the surface of the PET film using PET film as flexible substrates
The evenly dispersed conductive ink modulated with nano-silver thread of mode of roller coating, and drying is formed with nano-silver thread conductive film layer.This
The width of the conducting PET film of invention can reach 3~6m, horizontal Lapie≤3.
Further, the PET film of the invention is fabricated using biaxial tension method, in manufacturing process：In longitudinal direction
After stretching, conductive ink is dispersed in PET film surface by way of roller coating, forms coating；In lateral stretching phase, apply
Layer is by levelling and dries and forms nano-silver thread conductive film layer, while being drawn into required width in lateral stretching phase film, from
And obtain wide cut conducting PET film.
Further, the thickness of the nano-silver thread conductive film layer is in 100~1000nm, and PET film thickness is 10~300
μm。
Further, in the conductive ink concentration of nano-silver thread in 3~15mg/mL, it is commercially available also can autogamy.
Further, in the conductive ink nano-silver thread a diameter of 10nm~100nm, line length be 15~50 μm.
Further, the sheet resistance of conducting PET film of the present invention is not less than 85% in 20~200 Ω/, transmitance,
Mist degree is not more than 2%.
The manufacturing method of wide cut conducting PET film of the present invention is：In the work for making PET film using biaxial tension legal system
During skill, after longitudinal stretching, conductive ink is dispersed in PET film surface by way of roller coating, forms coating；
Then in lateral stretching phase, coating is by levelling and dries and forms nano-silver thread conductive film layer, while thin in lateral stretching phase
Film is drawn into required width, that is, obtains wide cut conducting PET film.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1, the technological process that PET film is made using biaxial tension legal system is mainly：Dispensing mixing-crystallizing and drying-melting is squeezed
Go out-slab-vertical drawing-horizontal drawing-traction winding-cutting packaging.The present invention is in each process for not changing existing manufacture PET film
On the basis of condition, by drawing the step of increasing roller coating conductive ink between horizontal drawing vertical, you can obtain width 3~6m's
Wide cut conducting PET film reduces follow-up coating waste water process, and method is simple, production efficiency is high, relative cost is lower, is suitable for
Industrial applications.
2, the wide cut conducting PET film that the present invention is obtained can be used as flexible transparent electrode, in large scale touch screen, electronics
The photoelectric fields extensive application such as paper, electronic whiteboard, liquid crystal display.
Description of the drawings
Fig. 1 is the performance comparison figure of the embodiment of the present invention 1~4 and comparative example.
Specific implementation mode
The present invention is further explained with reference to embodiment.It should be noted that described embodiment is only
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1
A concentration of 10mg/mL of nano-silver thread, specific formula are as follows in conductive ink used in the present embodiment：
The conducting PET film of the present embodiment, be 125 μm using thickness PET film as flexible substrates, in PET film
Surface is formed with nano-silver thread conductive film layer.
The manufacturing process flow of the present embodiment conducting PET film is：Dispensing mixing-crystallizing and drying-melting extrusion-slab-
Vertical drawing-roller coating conductive ink-horizontal drawing-traction winding-cutting packaging is in each process for not changing existing manufacture PET film
On the basis of process conditions, by drawing the step of increasing roller coating conductive ink between horizontal drawing to be fabricated vertical.Specifically：
PET membrane linear speeds are 30m/min, and it is 77 DEG C -78 DEG C -79 DEG C -80 DEG C -81 DEG C -82 DEG C, horizontal drawing phase temperature to indulge and draw phase temperature
For 100 DEG C -120 DEG C -120 DEG C -150 DEG C -200 DEG C -240 DEG C -100 DEG C -50 DEG C, (each temperature value is followed successively by every section infrared heating case
Temperature value), horizontal Lapie be 1.5.
The width of conducting PET film obtained by the present embodiment is 3.0 meters, the averagely dry thickness 345nm of conductive film layer, average sheet resistance 25
Ω/, mean transmissivity 85.2%, average haze 1.9%.
Embodiment 2
A concentration of 10mg/mL of nano-silver thread, specific formula are as follows in the present embodiment precoating conductive ink used：
The conducting PET film of the present embodiment, be 125 μm using thickness PET film as flexible substrates, in PET film
Surface is formed with nano-silver thread conductive film layer.
The manufacturing process flow of the present embodiment conducting PET film is：Dispensing mixing-crystallizing and drying-melting extrusion-slab-
Vertical drawing-roller coating conductive ink-horizontal drawing-traction winding-cutting packaging is in each process for not changing existing manufacture PET film
On the basis of process conditions, by drawing the step of increasing roller coating conductive ink between horizontal drawing to be fabricated vertical.Specifically：
PET membrane linear speeds are 30m/min, and it is 77 DEG C -78 DEG C -79 DEG C -80 DEG C -81 DEG C -82 DEG C, horizontal drawing phase temperature to indulge and draw phase temperature
For 100 DEG C -120 DEG C -120 DEG C -150 DEG C -200 DEG C -240 DEG C -100 DEG C -50 DEG C, (each temperature value is followed successively by every section infrared heating case
Temperature value), horizontal Lapie be 2.
The width of conducting PET film obtained by the present embodiment is 4.0 meters, the averagely dry thickness 296nm of conductive film layer, average sheet resistance 34
Ω/, mean transmissivity 86.5%, average haze 1.7%.
Embodiment 3
A concentration of 10mg/mL of nano-silver thread, specific formula are as follows in the present embodiment precoating conductive ink used：
The conducting PET film of the present embodiment, be 125 μm using thickness PET film as flexible substrates, in PET film
Surface is formed with nano-silver thread conductive film layer.
The manufacturing process flow of the present embodiment conducting PET film is：Dispensing mixing-crystallizing and drying-melting extrusion-slab-
Vertical drawing-roller coating conductive ink-horizontal drawing-traction winding-cutting packaging is in each process for not changing existing manufacture PET film
On the basis of process conditions, by drawing the step of increasing roller coating conductive ink between horizontal drawing to be fabricated vertical.Specifically：
PET membrane linear speeds are 40M/min, and it is 77 DEG C -78 DEG C -79 DEG C -80 DEG C -81 DEG C -82 DEG C, horizontal drawing phase temperature to indulge and draw phase temperature
For 100 DEG C -120 DEG C -120 DEG C -150 DEG C -200 DEG C -240 DEG C -100 DEG C -50 DEG C, (each temperature value is followed successively by every section infrared heating case
Temperature value), horizontal Lapie be 2.5.
The width of conducting PET film obtained by the present embodiment is 5.0 meters, the averagely dry thickness 250nm of conductive film layer, average sheet resistance 46
Ω/, mean transmissivity 87.2%, average haze 1.5%.
Embodiment 4
A concentration of 10mg/mL of nano-silver thread, specific formula are as follows in the present embodiment precoating conductive ink used：
The conducting PET film of the present embodiment, be 125 μm using thickness PET film as flexible substrates, in PET film
Surface is formed with nano-silver thread conductive film layer.
The manufacturing process flow of the present embodiment conducting PET film is：Dispensing mixing-crystallizing and drying-melting extrusion-slab-
Vertical drawing-roller coating conductive ink-horizontal drawing-traction winding-cutting packaging is in each process for not changing existing manufacture PET film
On the basis of process conditions, by drawing the step of increasing roller coating conductive ink between horizontal drawing to be fabricated vertical.Specifically：
PET membrane linear speeds are 30M/min, and it is 77 DEG C -78 DEG C -79 DEG C -80 DEG C -81 DEG C -82 DEG C, horizontal drawing phase temperature to indulge and draw phase temperature
For 100 DEG C -120 DEG C -120 DEG C -150 DEG C -200 DEG C -240 DEG C -100 DEG C -50 DEG C, (each temperature value is followed successively by every section infrared heating case
Temperature value), horizontal Lapie be 3.
The width of conducting PET film obtained by the present embodiment is 6.0 meters, the averagely dry thickness 195nm of conductive film layer, average sheet resistance
152 Ω/, mean transmissivity 89.6%, average haze 1.1%.
Comparative example
With reference to embodiment 1, it is a difference in that horizontal Lapie is adjusted to 4.13362 Ω of comparative example sheet resistance/ of gained, it is bright
Aobvious bigger than normal, the reason is that film surface conductive materials density caused by excessively drawing high is low, this can be with from the averagely dry thickness of conductive film layer
Find out.
The performance comparison figure of each embodiment and comparative example is as shown in Figure 1.
It these are only exemplary embodiment of the present invention, be not intended to limit the invention, all spirit in the present invention
With within principle made by all any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of wide cut conducting PET film, it is characterised in that：The conducting PET film be using PET film as flexible substrates,
The surface of the PET film evenly dispersed conductive ink modulated with nano-silver thread by way of roller coating, and drying is formed
There is nano-silver thread conductive film layer.
2. wide cut conducting PET film according to claim 1, it is characterised in that：The width of the conducting PET film is 3
~6m, horizontal Lapie≤3.
3. wide cut conducting PET film according to claim 1 or 2, it is characterised in that：The PET film uses two-way drawing
The method of stretching is fabricated, in manufacturing process：After longitudinal stretching, conductive ink is dispersed in PET film by way of roller coating
Surface forms coating；In lateral stretching phase, coating is by levelling and dries and forms nano-silver thread conductive film layer, while in transverse direction
Draw stage film is drawn into required width, to obtain wide cut conducting PET film.
4. wide cut conducting PET film according to claim 1 or 2, it is characterised in that：The nano-silver thread conductive film layer
Thickness is in 100~1000nm.
5. wide cut conducting PET film according to claim 1 or 2, it is characterised in that：Nano-silver thread in the conductive ink
Concentration in 3~15mg/mL.
6. wide cut conducting PET film according to claim 1 or 2, it is characterised in that：Nano-silver thread in the conductive ink
A diameter of 10nm~100nm, line length be 15~50 μm.
7. wide cut conducting PET film according to claim 1 or 2, it is characterised in that：The sheet resistance of the conducting PET film
It is not less than 85% in 20~200 Ω/, transmitance, mist degree is not more than 2%.
8. a kind of manufacturing method of any one of claim 1~7 wide cut conducting PET film, it is characterised in that：It is adopting
It is made in the technical process of PET film with biaxial tension legal system, it is after longitudinal stretching, conductive ink is uniform by way of roller coating
It is dispersed in PET film surface, forms coating；Then in lateral stretching phase, coating is by levelling and dries and forms nano-silver thread and lead
Electrolemma layer, while being drawn into required width in lateral stretching phase film, that is, obtain wide cut conducting PET film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171941.XA CN108376574A (en) | 2018-03-01 | 2018-03-01 | A kind of wide cut conducting PET film and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171941.XA CN108376574A (en) | 2018-03-01 | 2018-03-01 | A kind of wide cut conducting PET film and its manufacturing method |
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| CN108376574A true CN108376574A (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810171941.XA Pending CN108376574A (en) | 2018-03-01 | 2018-03-01 | A kind of wide cut conducting PET film and its manufacturing method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421600A (en) * | 2009-05-14 | 2012-04-18 | 杜邦帝人薄膜美国有限公司 | Transparent conductive composite films |
| CN104861776A (en) * | 2015-06-02 | 2015-08-26 | 北京化工大学 | Anti-settling and self-leveling silver nanowire conductive printing ink and method for preparing transparent conducting thin film by using same |
| CN205334442U (en) * | 2016-01-21 | 2016-06-22 | 王干 | Flexible transparent conductive electrode structure of compound nanometer silver line |
| CN107230518A (en) * | 2016-03-23 | 2017-10-03 | 张家港康得新光电材料有限公司 | Flexible conductive film, its preparation method and the photoelectric device comprising it |
-
2018
- 2018-03-01 CN CN201810171941.XA patent/CN108376574A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421600A (en) * | 2009-05-14 | 2012-04-18 | 杜邦帝人薄膜美国有限公司 | Transparent conductive composite films |
| CN104861776A (en) * | 2015-06-02 | 2015-08-26 | 北京化工大学 | Anti-settling and self-leveling silver nanowire conductive printing ink and method for preparing transparent conducting thin film by using same |
| CN205334442U (en) * | 2016-01-21 | 2016-06-22 | 王干 | Flexible transparent conductive electrode structure of compound nanometer silver line |
| CN107230518A (en) * | 2016-03-23 | 2017-10-03 | 张家港康得新光电材料有限公司 | Flexible conductive film, its preparation method and the photoelectric device comprising it |
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Application publication date: 20180807 |